Understanding Earthquakes: Causes and Impacts

The video explains what earthquakes feel like, their causes, and how they occur along fault lines due to tectonic plate movements. It uses a ruler analogy to describe the Earth's crust behavior. The video also covers how to detect earthquakes, their effects, and how they are measured using the Richter scale. It concludes with the frequency of earthquakes worldwide.

What is the typical duration of an earthquake?

• A few days

• Several hours

• Less than one minute

• Several weeks

What causes the Earth's plates to create earthquakes?

• The plates are stationary

• The plates move continuously and slowly past each other

• The plates are made of water

• The plates are shrinking

How can the stress on the Earth's crust be compared to a plastic ruler?

• The ruler melts when bent

• The ruler becomes longer

• The ruler changes color

• The ruler bends and breaks under pressure

What is the Richter scale used for?

• Measuring the temperature of the Earth

• Measuring the magnitude of earthquakes

• Measuring the speed of wind

• Measuring the depth of the ocean

How many earthquakes occur worldwide each year?

• About a thousand

• More than a million

• Exactly ten thousand

• Less than a hundred